基于单片机的智能磁滞回线测量系统的程序控制

发布时间：2018-01-04 20:29

本文关键词：基于单片机的智能磁滞回线测量系统的程序控制　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：近些年,随着时代的进步和科技水平的飞速发展,科研工作者们对磁性材料的磁滞现象的研究一直没停止,并取得了比较大的进步和发展,但是由于磁滞现象是极其复杂的,所以至今为止也没能够对其给出满意的处理方法。而研究磁滞现象的一个重要内容就是研究磁性材料的磁滞回线。所谓的磁滞回线是研究磁性材料的最基本最重要的磁参数之一[1],它表现为在H—B平面坐标系中的一条闭合曲线,不同铁磁质对应着不同的磁滞回线,同样对于不同磁滞回线的铁磁质也会有不同的应用领域,现如今铁磁材料作为主要的建筑生产材料,对于社会进步和经济的发展尤为重要,而磁特性又是铁磁材料的重要参数,所以设计出能够测试铁磁材料的磁滞回线的智能系统是具有十分重要的研究价值的。而高速、实时、方便、快捷、智能就是设计智能测量系统的主要任务和目标。在以上前提下,通过立足于单片机总控制系统、D/A信号控制系统、A/D信号采集系统、LabVIEW上位机数据处理部分以及相应的硬件处理电路和软件控制、采集、传输程序的基础上,设计出了一款智能磁滞回线的测量系统,该测量系统经过测试基本达到了高速、智能、准确的要求。本文在简单介绍测量系统的主要构成、原理和硬件电路大体构成的基础上,主要详细介绍整个系统中的程序控制,其中包括单片机总控制系统程序、D/A信号控制程序、A/D信号采集程序、单片机与PC机通讯程序以及相应每一部分的芯片选取情况等。通过软件程序的控制,再结合硬件电路以及LabVIEW合理的数据处理,就组成了整个智能测试系统,在整个测量系统中控制程序就是其神经控制中枢,其是十分重要的一部分。
[Abstract]:In recent years, with the progress of the times and the rapid development of science and technology, the research of magnetic hysteresis of magnetic materials has not stopped, and has made great progress and development. But because of the hysteresis phenomenon is extremely complex. So far, it has not been able to give a satisfactory treatment. And the study of hysteresis is an important part of the study of magnetic materials hysteresis loop. The so-called hysteresis loop is the most basic research magnetic materials the heaviest. One of the desired magnetic parameters. [1. It is shown as a closed curve in H-B plane coordinate system. Different ferromagnets correspond to different hysteresis loops, and there are also different application fields for ferromagnets with different hysteresis loops. Nowadays, ferromagnetic materials, as the main building materials, are particularly important for social progress and economic development, and magnetic properties are important parameters of ferromagnetic materials. So it is very important to design an intelligent system which can test the hysteresis loop of ferromagnetic material. Intelligence is the main task and goal of designing intelligent measurement system. Based on the above premise, the D / A signal control system of single chip microcomputer is based on the A / D signal acquisition system. On the basis of the data processing part of LabVIEW PC and the corresponding hardware processing circuit and software control, acquisition and transmission program, an intelligent hysteresis loop measurement system is designed. The measurement system has achieved the requirements of high speed, intelligence and accuracy after testing. This paper briefly introduces the main structure, principle and hardware circuit of the measurement system. This paper mainly introduces the program control of the whole system, including the master control system program of single chip microcomputer and the signal control program of D / A signal. The communication program between MCU and PC and the selection of each part of the chip, etc. Through the control of software program, combined with hardware circuit and reasonable data processing of LabVIEW. In the whole measurement system, the control program is the nerve control center, and it is a very important part.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM936.3;TP368.12

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